25505053 has 4 divisors (see below), whose sum is σ = 29148640. Its totient is φ = 21861468.

The previous prime is 25505041. The next prime is 25505057. The reversal of 25505053 is 35050552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25505053 - 2⁵ = 25505021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25505057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821783 + ... + 1821796.

It is an arithmetic number, because the mean of its divisors is an integer number (7287160).

Almost surely, 2^25505053 is an apocalyptic number.

It is an amenable number.

25505053 is a deficient number, since it is larger than the sum of its proper divisors (3643587).

25505053 is an equidigital number, since it uses as much as digits as its factorization.

25505053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643586.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 25505053 is about 5050.2527659514. The cubic root of 25505053 is about 294.3577062759.

It can be divided in two parts, 2 and 5505053, that added together give a palindrome (5505055).

The spelling of 25505053 in words is "twenty-five million, five hundred five thousand, fifty-three".